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Edge · 03-30-2006, 10:53 AM

Git,

Of course you can assume that. Now whether the assumption is right or not is another question ;-}.

If there is a linear relation between the wattage increase and the increased flow (i.e. at 18w we get 50% more lpm than at 12w and the charts match), then the efficiency of the pump is the same and I think the assumption would work. How do the PO graphs match up (I haven't compared them)? If the charts have the same characteristics but are offset by something other than 50%, you could probably come up with a good enough fudge factor.

Now this is based on the idea that the energy that doesn't go into moving more water goes is dissipated as heat into the water. I am making this assumption and I am sure I will be enlightened here if that is a bad assumption (especially since I don't know anything and am just guessing).

03-30-2006, 10:53 AM	#23
Edge Cooling Neophyte Join Date: Oct 2002 Location: westchester, ny, usa Posts: 20	Re: DDC Plus Git, Of course you can assume that. Now whether the assumption is right or not is another question ;-}. If there is a linear relation between the wattage increase and the increased flow (i.e. at 18w we get 50% more lpm than at 12w and the charts match), then the efficiency of the pump is the same and I think the assumption would work. How do the PO graphs match up (I haven't compared them)? If the charts have the same characteristics but are offset by something other than 50%, you could probably come up with a good enough fudge factor. Now this is based on the idea that the energy that doesn't go into moving more water goes is dissipated as heat into the water. I am making this assumption and I am sure I will be enlightened here if that is a bad assumption (especially since I don't know anything and am just guessing).